This is the biggest downfall of nostr. You shit get compromised and your fucked forever at least with bitcoin you could send it to a new address that is not comprised.
I believe that there's a NIP that enables this to be addressed by configuring a second Nostr key that THIS key becomes/inherits so that you can actively 'kill' the current one .. sry haven't got the details but discussed with @T₿one .. have you got the NIP ref mate?
